View this post on Instagram A post shared by Barrie Gower (@barriegower)
A post shared by Barrie Gower (@barriegower)
It's never really been explained why some Targaryen babies are born with dragon-like features (none have survived, that we know of), but Daenerys and Drogo's stillborn child Rhaego was said to have the same scales, wings and tail.
The prevailing theory is that Targaryen's really do have dragon blood flowing in their veins, and their children look like this while being carried to term. This would explain why only premature births seem to exhibit reptilian appendages.